Sunday
April 19, 2015

Homework Help: Physics

Posted by Melanie on Thursday, September 20, 2012 at 5:41pm.

1) A physics book is moved once around the
perimeter of a table of dimensions 1 m by 3
m.
What is the distance traveled?

2) A window washer drops a brush from a scaf-
fold on a tall office building.
What is the speed of the falling brush after
2.7 s? (Neglect drag forces.) The acceleration
due to gravity is 9.8 m/s2 .
Answer in units of m/s
How far has it fallen in that time?
answer in units of m

3) With an average acceleration of −0.96 m/s2,
how long will it take a cyclist to bring a bicycle
with an initial speed of 14.8 m/s to a complete
stop?
Answer in units of s

4) A car traveling initially at +5.7 m/s acceler-
ates uniformly at the rate of +0.79 m/s2 for a
distance of 262 m.
What is its velocity at the end of the accel-
eration?
Answer in units of m/s
What is its velocity after it accelerates for 132
m?
Answer in units of m/s
What is its velocity after it accelerates for 65
m?
Answer in units of m/s

PLEASE give right answers + explain how you got it. Thanks!!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - A window washer drops a brush from a scaffold on a tall office ...
Physics - A window washer drops a brush from a scaffold on a tall office ...
physics - a window washer pushes his scrub brush up a vertical window at a ...
physics - A window washer drops a brush from a scaf- fold on a tall office ...
physics - A window washer pushes his scrub brush →− up a vertical ...
Physics - A book is moved once around the edge of a tabletop with dimensions 1....
Science - If you walk 20m. and took a book from a library table, turned around, ...
Science - If you walk 20m, took a book from a library table, turned around, ...
physics - a window easher pushes his brush up a vertical window at constant ...
physics - A window washer uses the chair and pulley arrangement shonw in the ...

Members